JPS5474549A - Heat conducting tube - Google Patents

Heat conducting tube

Info

Publication number
JPS5474549A
JPS5474549A JP14075177A JP14075177A JPS5474549A JP S5474549 A JPS5474549 A JP S5474549A JP 14075177 A JP14075177 A JP 14075177A JP 14075177 A JP14075177 A JP 14075177A JP S5474549 A JPS5474549 A JP S5474549A
Authority
JP
Japan
Prior art keywords
tube
heat conducting
boundary layer
flat portion
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14075177A
Other languages
Japanese (ja)
Inventor
Yoshio Mochida
Rinzo Miyoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14075177A priority Critical patent/JPS5474549A/en
Priority to FR7833334A priority patent/FR2410238A1/en
Publication of JPS5474549A publication Critical patent/JPS5474549A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element

Abstract

PURPOSE: To enhance the peel off of the boundary layer from the tube wall by providing an intermittent flat portion in the continuous groove axially formed on the inside wall of a heat conducting tube for increased coefficient of heat transfer and reduced pressure loss.
CONSTITUTION: Grooves 2 are axially formed on the inside wall of a heat conducting tube 1 whereby the flow adjacent to the heat conducting surface is disturbed for form thinner boundary layer and improved coefficient of heat transfer. Further forming of an intermittent flat portion 3 in said grooves 2 enhances the peel off of the boundary layer from the tube wall. The boundary layer peeled off from the tube wall redevelops along the direction of flow but peels off again by the flat portion provided with spacing of less than twenty times of the tube inside diameter.
COPYRIGHT: (C)1979,JPO&Japio
JP14075177A 1977-11-25 1977-11-25 Heat conducting tube Pending JPS5474549A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14075177A JPS5474549A (en) 1977-11-25 1977-11-25 Heat conducting tube
FR7833334A FR2410238A1 (en) 1977-11-25 1978-11-24 Heat exchanger tube design - incorporates longitudinal grooving and equally spaced circumferential grooves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14075177A JPS5474549A (en) 1977-11-25 1977-11-25 Heat conducting tube

Publications (1)

Publication Number Publication Date
JPS5474549A true JPS5474549A (en) 1979-06-14

Family

ID=15275877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14075177A Pending JPS5474549A (en) 1977-11-25 1977-11-25 Heat conducting tube

Country Status (2)

Country Link
JP (1) JPS5474549A (en)
FR (1) FR2410238A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54147752U (en) * 1978-04-06 1979-10-15
KR100607160B1 (en) 2005-03-31 2006-08-02 조연섭 Bamboo tube for a heat exchanger

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474154A1 (en) * 1980-01-21 1981-07-24 Felten & Guilleaume Carlswerk Heat exchanger with air and water-cooled tubes - has vertical aluminium tubes with ends exposed to ambient air and centre in water pipes
FR2487059A1 (en) * 1980-07-16 1982-01-22 Grumman Energy Systems Inc Leak detection for coaxial heat exchange - has outer, intermediate and inner coaxial tubes with longitudinal fins projecting radially inwards
FR2620805B1 (en) * 1987-09-21 1990-06-15 Valeo Chausson Thermique TUBE FOR THE CONDENSATION OF REFRIGERANT FLUIDS
GB2212899B (en) * 1987-11-30 1991-11-20 American Standard Inc Heat exchanger tube having minute internal fins
DE3834814A1 (en) * 1988-10-13 1990-04-19 Erno Raumfahrttechnik Gmbh EVAPORATIVE HEAT EXCHANGER FOR REMOVING HEAT FROM SPACE VEHICLES
JP3001181B2 (en) * 1994-07-11 2000-01-24 株式会社クボタ Reaction tube for ethylene production
ITMI20011366A1 (en) * 2001-06-28 2002-12-28 Camozzi Holding S P A TOOL WITH HIGH EFFICIENCY COOLING DUCTS
DK3384981T3 (en) * 2017-04-07 2024-04-08 Schmidt Clemens Gmbh Co Kg TUBES AND DEVICE FOR THERMAL SPLITTING OF CARBON HYDRIDS
KR102576003B1 (en) 2017-04-07 2023-09-07 슈미트+클레멘즈 게엠베하+콤파니.카게 Pipes and devices for thermal cracking of hydrocarbons

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1854421A (en) * 1931-03-07 1932-04-19 Nat Radiator Corp Condenser
US2244800A (en) * 1939-12-26 1941-06-10 Pascale Miguel Heat transfer tube
FR1282811A (en) * 1961-02-03 1962-01-27 Sepi Improvements to heat exchangers
CA1036804A (en) * 1976-08-02 1978-08-22 Noranda Mines Limited Method for forming a serrated-fin tube

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54147752U (en) * 1978-04-06 1979-10-15
JPS577986Y2 (en) * 1978-04-06 1982-02-16
KR100607160B1 (en) 2005-03-31 2006-08-02 조연섭 Bamboo tube for a heat exchanger

Also Published As

Publication number Publication date
FR2410238A1 (en) 1979-06-22

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